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Malicious package

httppackPyPI

Advisory published Updated

httppack is a confirmed malicious PyPI package (MAL-2025-6522) that executes malicious code on install (malicious versions 0.1, 0.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in httppack (PyPI)

MAL-2025-6522
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall httppack

What this malware does

Packages that might be part of testing for pentesting / malicious activity / joy, with suspicious activity that does not present any real harm.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-simple-tests

Reasons (based on the campaign):

  • The package overrides the install command in setup.py to execute malicious code during installation.

Malicious versions

2 flagged
0.10.2

Indicators of compromise (SHA-256)

5db6abc2dd73c368c8d62385f13796a00cefea8bfb5402ead9f78cf28fd921bf
9e56447724a029ce757b7928d9d901b53bc34d2dba8bad3ef794ac77844afaf6
d66d0c3948eb48c93a56872d2a149edfcc65ae57178e7d7a51405ef755880939
17afbbd40f2c75f9b0778ba9e27f3372b83c743c36f0ef4f9965f26a2c4b0086
437fed99869ae64fd84ced0bfd32d14e1f475c3366273a368f5bb8aa89325bc7

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for httppack (2 malicious versions).

  2. If you installed it — respond

    Remove httppack from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If httppack was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. httppack on PyPI has been identified as a malicious package (versions 0.1, 0.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-03615GENERIC-simple-testsRLUA-2026-00398

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks httppack-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

httppack (PyPI) malicious package — MAL-2025-6522 | O3 Security